28519072 has 24 divisors (see below), whose sum is σ = 56349216. Its totient is φ = 14208192.

The previous prime is 28519063. The next prime is 28519097. The reversal of 28519072 is 27091582.

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8373 + ... + 11275.

It is an arithmetic number, because the mean of its divisors is an integer number (2347884).

Almost surely, 2^28519072 is an apocalyptic number.

It is an amenable number.

28519072 is a deficient number, since it is larger than the sum of its proper divisors (27830144).

28519072 is a wasteful number, since it uses less digits than its factorization.

28519072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220 (or 3212 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 28519072 is about 5340.3250837379. The cubic root of 28519072 is about 305.5238583000.

The spelling of 28519072 in words is "twenty-eight million, five hundred nineteen thousand, seventy-two".